/* ===== page-home 专属样式 ===== */
.page-home {
  --hero-bg: var(--neutral-light);
  --frame-border: var(--primary);
  --frame-scale: #81C784;
  --grid-line: rgba(76,175,80,0.08);
  --card-shadow: var(--shadow-sm);
  --card-shadow-hover: 0 8px 24px rgba(76,175,80,0.12);
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--white);
}

/* ---- 页面上下文 ---- */
.page-home .page-context {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 20px 0;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  font-size: 13px;
  color: var(--neutral-mid);
  letter-spacing: 0.02em;
}
.page-home .ctx-badge {
  background: var(--primary);
  color: var(--white);
  padding: 2px 10px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
}
.page-home .ctx-sep {
  color: var(--border);
}
.page-home .ctx-tag {
  font-weight: 500;
  color: var(--primary-dark);
}

/* ---- 首屏框景 ---- */
.page-home .hero {
  position: relative;
  padding: 0 20px 40px;
}
.page-home .hero-frame {
  position: relative;
  max-width: 1200px;
  margin: 8px auto 0;
  padding: 32px 28px 36px;
  background: var(--white);
  border: 2px solid var(--frame-border);
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
  /* 刻度边框：四边刻度线 */
  background:
    repeating-linear-gradient(90deg, var(--frame-border) 0px, var(--frame-border) 2px, transparent 2px, transparent 14px) 0 0 / 100% 4px no-repeat,
    repeating-linear-gradient(90deg, var(--frame-border) 0px, var(--frame-border) 2px, transparent 2px, transparent 14px) 0 100% / 100% 4px no-repeat,
    repeating-linear-gradient(0deg, var(--frame-border) 0px, var(--frame-border) 2px, transparent 2px, transparent 14px) 0 0 / 4px 100% no-repeat,
    repeating-linear-gradient(0deg, var(--frame-border) 0px, var(--frame-border) 2px, transparent 2px, transparent 14px) 100% 0 / 4px 100% no-repeat;
  background-color: var(--white);
}
/* 技术蓝图网格底层 */
.page-home .hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  border-radius: 2px;
  z-index: 0;
}
.page-home .hero-layout {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: stretch;
}
.page-home .hero-text {
  flex: 1 1 340px;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.page-home .hero-title {
  font-family: Montserrat, var(--font-sans);
  font-weight: 700;
  font-size: 32px;
  line-height: 1.15;
  color: var(--neutral-dark);
  letter-spacing: -0.01em;
  margin: 0;
}
.page-home .hero-subtitle {
  font-size: 16px;
  line-height: 1.6;
  color: var(--neutral-mid);
  margin: 0;
  max-width: 520px;
}
.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}
.page-home .btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: var(--primary);
  color: var(--white);
  font-weight: 600;
  font-size: 15px;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 6px rgba(76,175,80,0.25);
}
.page-home .btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(76,175,80,0.3);
}
.page-home .btn-outline {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: transparent;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  border-radius: 4px;
  border: 2px solid var(--primary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.page-home .btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}
.page-home .hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}
.page-home .hero-highlights li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--neutral-dark);
}
.page-home .hl-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

/* ---- 轮播 ---- */
.page-home .hero-carousel {
  flex: 1 1 360px;
  min-width: 260px;
  position: relative;
}
.page-home .carousel-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 21 / 9;
  overflow: hidden;
  border-radius: 4px;
  background: var(--neutral-light);
}
.page-home .carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}
.page-home .carousel-slide .carousel-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-home .slide-label {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(33,33,33,0.75);
  color: #fff;
  padding: 4px 14px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  backdrop-filter: blur(4px);
}
/* radio 控制 */
.page-home #s1:checked ~ .carousel-viewport [data-slide="1"],
.page-home #s2:checked ~ .carousel-viewport [data-slide="2"],
.page-home #s3:checked ~ .carousel-viewport [data-slide="3"] {
  opacity: 1;
  pointer-events: auto;
}
.page-home .hero-carousel input[type="radio"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.page-home .carousel-indicators {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  justify-content: center;
}
.page-home .indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px 4px 4px;
  background: transparent;
  border: 2px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  font-size: 13px;
  font-weight: 500;
  color: var(--neutral-mid);
}
.page-home .ind-dot {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.2s, transform 0.2s;
}
.page-home .ind-text {
  display: none;
}
/* radio:checked 指示器高亮 */
.page-home #s1:checked ~ .carousel-indicators label[for="s1"],
.page-home #s2:checked ~ .carousel-indicators label[for="s2"],
.page-home #s3:checked ~ .carousel-indicators label[for="s3"] {
  border-color: var(--primary);
  background: rgba(76,175,80,0.06);
}
.page-home #s1:checked ~ .carousel-indicators label[for="s1"] .ind-dot,
.page-home #s2:checked ~ .carousel-indicators label[for="s2"] .ind-dot,
.page-home #s3:checked ~ .carousel-indicators label[for="s3"] .ind-dot {
  background: var(--primary);
  transform: scale(1.15);
}

/* ---- 规范透明区 ---- */
.page-home .features {
  padding: 60px 20px;
  background: var(--neutral-light);
}
.page-home .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}
.page-home .section-header {
  text-align: center;
  margin-bottom: 40px;
}
.page-home .section-title {
  font-family: Montserrat, var(--font-sans);
  font-weight: 700;
  font-size: 28px;
  color: var(--neutral-dark);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.page-home .section-desc {
  font-size: 16px;
  color: var(--neutral-mid);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.5;
}
.page-home .features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 32px;
}
.page-home .feature-card {
  display: flex;
  flex-direction: column;
  border-radius: 4px;
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.25s, transform 0.25s;
}
.page-home .feature-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
}
.page-home .fc-visual {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--neutral-light);
}
.page-home .fc-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-home .fc-body {
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.page-home .fc-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(76,175,80,0.08);
  margin-bottom: 4px;
}
.page-home .fc-title {
  font-family: Montserrat, var(--font-sans);
  font-weight: 700;
  font-size: 20px;
  color: var(--neutral-dark);
  margin: 0;
}
.page-home .fc-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--neutral-mid);
  margin: 0;
  flex: 1;
}
.page-home .fc-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: 14px;
  color: var(--primary);
  text-decoration: none;
  margin-top: 8px;
  transition: gap 0.2s;
}
.page-home .fc-link:hover {
  gap: 8px;
  color: var(--primary-dark);
}
.page-home .link-arrow {
  transition: transform 0.2s;
}
.page-home .fc-link:hover .link-arrow {
  transform: translateX(3px);
}
.page-home .feature-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  justify-content: center;
}
.page-home .feature-meta li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--neutral-dark);
}
.page-home .meta-badge {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--white);
  background: var(--badge-clr, var(--primary));
  letter-spacing: 0.02em;
}

/* ---- 三大服务中心 ---- */
.page-home .services {
  padding: 60px 20px;
  background: var(--white);
}
.page-home .services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-home .service-card {
  display: flex;
  flex-direction: column;
  border-radius: 4px;
  background: var(--white);
  box-shadow: var(--card-shadow);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: box-shadow 0.25s, transform 0.25s;
}
.page-home .service-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-4px);
}
.page-home .sc-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 140px;
  background: var(--sc-bg, var(--primary-light));
  overflow: hidden;
}
.page-home .sc-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
}
.page-home .sc-icon-over {
  position: relative;
  z-index: 1;
}
.page-home .sc-body {
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.page-home .sc-title {
  font-family: Montserrat, var(--font-sans);
  font-weight: 700;
  font-size: 20px;
  color: var(--neutral-dark);
  margin: 0;
}
.page-home .sc-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--neutral-mid);
  margin: 0;
  flex: 1;
}
.page-home .sc-cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: 14px;
  color: var(--primary);
  margin-top: 8px;
  transition: gap 0.2s;
}
.page-home .service-card:hover .sc-cta {
  gap: 8px;
  color: var(--primary-dark);
}

/* ---- 信任声明 ---- */
.page-home .trust {
  padding: 40px 20px 60px;
  background: var(--neutral-light);
}
.page-home .trust-block {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 28px 32px;
  border-radius: 4px;
  background: var(--white);
  box-shadow: var(--card-shadow);
  align-items: center;
}
.page-home .trust-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(76,175,80,0.08);
}
.page-home .trust-body {
  flex: 1;
  min-width: 200px;
}
.page-home .trust-text {
  font-size: 16px;
  line-height: 1.6;
  color: var(--neutral-dark);
  margin: 0 0 8px;
}
.page-home .trust-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 13px;
  color: var(--neutral-mid);
}
.page-home .trust-sep {
  color: var(--border);
}
.page-home .trust-icp {
  font-weight: 500;
  color: var(--neutral-mid);
}
.page-home .trust-email {
  font-weight: 500;
  color: var(--primary-dark);
}

/* ---- 返回顶部 ---- */
.page-home .back-to-top {
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  border: none;
  box-shadow: 0 4px 12px rgba(76,175,80,0.3);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
  transform: translateY(12px);
}
.page-home .back-to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.page-home .back-to-top:hover {
  background: var(--primary-dark);
  transform: scale(1.08);
}

/* ===== 响应式 ===== */
/* 移动端优先：默认单列，以上是窄屏样式 */

/* ≥640px 平板 */
@media (min-width: 640px) {
  .page-home .hero-title {
    font-size: 38px;
  }
  .page-home .hero-layout {
    flex-wrap: nowrap;
  }
  .page-home .hero-text {
    flex: 1 1 280px;
  }
  .page-home .hero-carousel {
    flex: 1 1 340px;
  }
  .page-home .ind-text {
    display: inline;
  }
  .page-home .features-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-home .services-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-home .trust-block {
    flex-wrap: nowrap;
  }
}

/* ≥960px 桌面 */
@media (min-width: 960px) {
  .page-home .hero {
    padding: 0 40px 60px;
  }
  .page-home .hero-frame {
    padding: 44px 40px 48px;
  }
  .page-home .hero-title {
    font-size: 44px;
  }
  .page-home .hero-subtitle {
    font-size: 18px;
  }
  .page-home .hero-text {
    flex: 1 1 320px;
  }
  .page-home .hero-carousel {
    flex: 1 1 420px;
  }
  .page-home .features {
    padding: 80px 40px;
  }
  .page-home .services {
    padding: 80px 40px;
  }
  .page-home .services-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .page-home .section-title {
    font-size: 32px;
  }
  .page-home .trust {
    padding: 40px 40px 80px;
  }
  .page-home .back-to-top {
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
  }
}

/* ≥1200px 宽屏 */
@media (min-width: 1200px) {
  .page-home .hero-layout {
    gap: 48px;
  }
  .page-home .hero-text {
    flex: 1 1 360px;
  }
  .page-home .hero-carousel {
    flex: 1 1 480px;
  }
  .page-home .carousel-viewport {
    aspect-ratio: 21 / 9;
  }
}

.page-home {
  --badge-clr: transparent;
  --sc-bg: transparent;
}